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CAT4101: LED Driver, 1 A Constant Current with PWM

Datasheet: LED Driver, 1 A Constant Current with PWM
Rev. 8 (147.0kB)
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»Product Change Notification (2)
Product Overview
Product Description
The CAT4101 is a constant-current sink driving a string of high-brightness LEDs up to 1 A with very low dropout of 0.5 V at full load. It requires no inductor, provides a low noise operation and minimizes the number of components. The LED current is set by an external resistor connected to the RSET pin. The LED pin is compatible with high voltage up to 25 V, allowing the driving of long strings of LEDs. The device ensures an accurate and regulated current in the LEDs independent of supply and LED forward voltage variation. The PWM/EN input allows the device shutdown and the LED brightness adjustment by using an external pulse width modulation (PWM) signal. The driver features a thermal shutdown protection that becomes active whenever the die temperature exceeds 150C. The device is available in a high-power, 5-lead TO-263 package offering excellent thermal dissipation characteristics.
  • Accurate 1 A Current Sink
  • Up to 25 V Operation on LED Pin
  • Low Dropout 500 mV at 1 A
  • LED Current Set by External Resistor
  • High Resolution PWM Dimming via EN/PWM
  • 'Zero' current Shutdown mode
  • Thermal Shutdown Protection
  • TO263 (D2PAK) 5-lead Package
  • This Device is Pb-Free, Halogen Free/BFR Free and is RoHS Compliant
Applications   End Products
  • High Power LED up to 1A
  • Architectural and General Lighting
  • Automotive Lighting
Technical Documentation & Design Resources
Design & Development Tools (1) Package Drawings (1)
Application Notes (1) Evaluation Board Documents (5)
Data Sheets (1)  
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
CAT4101AEVB Active
LDO Current Sink Evaluation Board
Avnet (2015-11-26) : 1
Digikey (2015-11-26) : 2
Availability and Samples
Budgetary Price/Unit
Case Outline
CAT4101TV-T75 Active
Halide free
LED Driver, 1 A Constant Current with PWM TO-263-5 221AE 3 Tape and Reel 750 $1.28
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) : 8 to 12
Arrow   (2015-11-26 12:25) : 7489
Avnet   (2015-11-26 00:00) : <1K
Digikey   (2015-11-26 00:00) : >1K
Mouser   (2015-11-26 00:00) : >1K
PandS   (2015-11-26 00:00) : <1K
Datasheet: LED Driver, 1 A Constant Current with PWM
Rev. 8 (147.0kB)
»View Material Composition
»Product Change Notification (2)
Product Overview

Product Compliance Status Description VI Max (V) IO Max (mA) LEDs in Series, Max # LEDs in Parallel, Max # Package Type
 Halide free 
 Active     LED Driver, 1 A Constant Current with PWM   5.5   1000   8   1   TO-263-5 
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